Question

Given n(U)=60, n(A)= 33, n(B)=23, and n(AnB)=2, find n(AUB)'

Answer 1

Answer:

6

Step-by-step explanation:

First we need to find n(AUB)...

n(AUB) = n(A) + n(B) - n(A∩B)

n(AUB) = 33 + 23 - 2 = 54

Now for n(AUB)'..

n(AUB)' = n(U) - n(AUB)

= 60 - 54 = 6